Varnais the largest city on the Bulgarian Black Sea Coast and the third-largest city in Bulgaria after Sofia and Plovdiv with a population of 334,870 inhabitants. Commonly referred to as the marine (or summer) capital of Bulgaria, Varna is a major tourist destination, business and university centre, seaport...

Bourgasis the second-largest city on the Bulgarian Black Sea Coast and the fourth-largest in Bulgaria after Sofia, Plovdiv and Varna, with a population of 200,271. It is an important industrial, transport, cultural and tourist centre, seaport.Bourgas Airport is the second most important in the country...

Sofiais the capital and largest city of Bulgariawith a population of 1 263 328inhabitants. It is situated in western Bulgaria, in Sofia Valley,surrounded by mountains on all sides. Many of the major universities, cultural institutions and businesses of Bulgaria are concentrated in Sofia...